Voldemorts Return....

Ok,so I know bout his horcruxes:the cup,the diadem,Nagini,the locket,the ring,HP and the one that remains in him. So how did he return in GOF if he didnt use one of his horcruxes? He had made all before his downfall when he tried to kill Harry so y did he use quirrells body and wat took him so long?!?